Currently no one. He last played with the NY Jets in 2009, but only during offseason and/or practice squad.
Franco Harris played for the steelers as a full back in the 70's
Nate Davis plays currently for Amarillo Venom. He is an American football quarterback. He has also been a member of the Seattle Seahawks and Indianapolis colts.
I did a player search on the Arena Football League website and it turned up no one named Elliot Harris. There is a Josh Harris for Columbus, Atnaf Harris for Arizona, Johnnie Harris for Grand Rapids, Richard Harris for New York, and Aundrae Harris for Grand Rapids. I have included a link to the Arena Football League website on this page.
Nate Solder plays for the England Patriots.
Nate Guenin plays for the Colorado Avalanche.
Nate Prosser plays for the Minnesota Wild.
Nate Schmidt plays for the Washington Capitals.
Nate Wolters plays for the Milwaukee Bucks.
Nate Freiman plays for the Oakland Athletics.
Nate McLouth plays for the Washington Nationals.
Nate Potter plays for the Arizona Cardinals.
Nate Chandler plays for the Carolina Panthers.